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nbd: consistently use ssize_t

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GCC (pedantically, but correctly) considers that a negative ssize_t may
become positive when casted to int.  This may cause uninitialized variable
warnings when a function returns such a negative ssize_t and is inlined.
Propagate ssize_t return types to avoid this.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-03-07 11:25:01 +01:00
parent dd3e8ac413
commit 94e7340b5d
2 changed files with 12 additions and 14 deletions
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4
nbd.h
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@ -70,8 +70,8 @@ int unix_socket_incoming(const char *path);
int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
off_t *size, size_t *blocksize);
int nbd_init(int fd, int csock, uint32_t flags, off_t size, size_t blocksize);
int nbd_send_request(int csock, struct nbd_request *request);
int nbd_receive_reply(int csock, struct nbd_reply *reply);
ssize_t nbd_send_request(int csock, struct nbd_request *request);
ssize_t nbd_receive_reply(int csock, struct nbd_reply *reply);
int nbd_client(int fd);
int nbd_disconnect(int fd);